198 Intelligent technology
vehicles with adaptive cruise control*, the
brake assist system is more sensitive if the
distance detected to the vehicle ahead is too
smal l.
Anti -slip regulati on (ASR)
ASR reduces engine power when the drive
wheels begin to spin and adapts the force to
the road conditions. This makes it easier to
start, accelerate and drive up hills.
Electronic diffe rential lock (EDL)
The EDL brakes wheels that are spinn ing and
transfers the drive power to the other drive
wheel or whee ls if the vehicle is equipped with
all whee l drive*. This function is available up
to about 75 mph (120 km/h).
I n extreme cases, EDL automatica lly switches
off to help keep the brake on the braked whee l
from overheating . EDL wi ll switch on again au-
tomatically when conditions have returned to
normal.
Dynamic steer ing*
On vehicles with dynamic steering, ESC helps
stabilize the steering in certain situations .
Selective wheel torqu e control
The selective wheel torque cont rol operates
when dr iving thro ugh curves. The front wheel
on the inside of the curve or both w heels on
the inside of the curve are braked selective ly
as needed. This minimizes sliding in the front
wheels and all ows for more precise driving
through curves. The applicab le system may
not activate when driving in wet or snowy con-
ditions .
Post-coll ision brake assist
"Post-collision brake assist" can assist the
driver during a collision by reducing the dan-
ger of slipp ing and further collision and by au-
tomatic braking.
"Post-collision brake assist" functions during
collisions when the airbag contro l modu le de-
tects a trigger level and the collision takes
place at a certa in driving speed. The braking
of the vehicle happens automatically via the
ESC as long as the ESC, the brake system, and
the vehicle electrical system are not damaged
from the collision.
The following acti vit ies override the aut omat-
ic braking during a collision:
- If the driver presses the accelerator pedal.
There is no automa t ic braking .
- When the force on the press brake pedal is
st ronger tha n the braking force initiated by
t he system. The vehicle is manua lly braked.
- When the ESC is damaged, the "Post-colli-
sion brake assist" is not available.
,&. WARNING
- ESC, ABS, ASR, EDL, dynamic steeri ng*
and the select ive wheel torque control
cannot overcome the laws of physics.
This is especially important on sli ppery
or wet roads. If the systems begin acting
to stabilize your vehicle, you should im-
mediately change your speed to match
the road and traffic conditions. Do not
let the increased safety provided by
these systems tempt you to take risks.
Doing so will increase the risk of a loss of
vehicle contro l, collision and serious per-
sonal injuries.
- Always adapt your speed t o road, traffi c
and weather conditions . The risk of los-
ing contro l of the vehicle increases when
driving too fast, especially through
curves and on slippery or wet roads, and
when driving too close to vehicles up
ahead. ESC, ABS, the brake assist sys-
tem, EDL, ASR, dynam ic steering* and
the selective wheel torque cont rol can-
not prevent collisions.
- Always accelerate with special care on
even, smooth surfaces such as those that
are wet or covered with ice and snow.
The drive wheels can spin even w ith
these assistance systems tha t cannot al-
ways help to reduce the risk of loss of ve-
-
hicle control. IJJ,,
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